WO2012091055A1 - Cellule électrolytique utilisant un procédé à membrane échangeuse d'ions - Google Patents

Cellule électrolytique utilisant un procédé à membrane échangeuse d'ions Download PDF

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Publication number
WO2012091055A1
WO2012091055A1 PCT/JP2011/080305 JP2011080305W WO2012091055A1 WO 2012091055 A1 WO2012091055 A1 WO 2012091055A1 JP 2011080305 W JP2011080305 W JP 2011080305W WO 2012091055 A1 WO2012091055 A1 WO 2012091055A1
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WO
WIPO (PCT)
Prior art keywords
electrolytic cell
exchange membrane
support member
ion exchange
electrode support
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PCT/JP2011/080305
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English (en)
Japanese (ja)
Inventor
健二 坂本
幹治 吉光
岡本　光正
Original Assignee
東ソー株式会社
クロリンエンジニアズ株式会社
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Publication of WO2012091055A1 publication Critical patent/WO2012091055A1/fr

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    • C—CHEMISTRY; METALLURGY
    • C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
    • C25B—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES FOR THE PRODUCTION OF COMPOUNDS OR NON-METALS; APPARATUS THEREFOR
    • C25B11/00—Electrodes; Manufacture thereof not otherwise provided for
    • C25B11/02—Electrodes; Manufacture thereof not otherwise provided for characterised by shape or form
    • C—CHEMISTRY; METALLURGY
    • C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
    • C25B—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES FOR THE PRODUCTION OF COMPOUNDS OR NON-METALS; APPARATUS THEREFOR
    • C25B9/00—Cells or assemblies of cells; Constructional parts of cells; Assemblies of constructional parts, e.g. electrode-diaphragm assemblies; Process-related cell features
    • C25B9/17—Cells comprising dimensionally-stable non-movable electrodes; Assemblies of constructional parts thereof
    • C25B9/19—Cells comprising dimensionally-stable non-movable electrodes; Assemblies of constructional parts thereof with diaphragms
    • C—CHEMISTRY; METALLURGY
    • C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
    • C25B—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES FOR THE PRODUCTION OF COMPOUNDS OR NON-METALS; APPARATUS THEREFOR
    • C25B9/00—Cells or assemblies of cells; Constructional parts of cells; Assemblies of constructional parts, e.g. electrode-diaphragm assemblies; Process-related cell features
    • C25B9/60—Constructional parts of cells
    • C25B9/65—Means for supplying current; Electrode connections; Electric inter-cell connections

Definitions

  • the present invention relates to an ion exchange membrane method electrolytic cell used in the electrolytic industry represented by chloralkali electrolysis.
  • the ion exchange membrane electrolytic cell of the present invention is a zero-gap electrolytic cell developed for the purpose of reducing the required energy with the distance between the anode and the cathode shortened as much as possible. It has the feature that electrolytic operation can be performed stably for a long time without damaging the membrane.
  • the ion exchange membrane electrolysis industry represented by chloralkali electrolysis plays an important role as a material industry, but the ion exchange membrane electrolysis cell consumes a large amount of electric energy. For this reason, energy saving in the ion exchange membrane electrolytic industry is regarded as a universal issue, and various research and development are being carried out continuously.
  • Electroelectric energy consumed during electrolysis is proportional to the electrolysis voltage, so reducing electrolysis voltage directly leads to energy savings.
  • reducing electrolysis voltage For the purpose of reducing the electrolysis voltage, research and development of a so-called zero gap electrolyzer in which the distance between the anode and the cathode is made as short as possible has been performed.
  • the zero-gap electrolytic cell has a structure in which an ion exchange membrane is sandwiched between an anode and a cathode, and can reduce the electrical resistance of the electrolytic solution as much as possible, greatly contributing to energy saving of chloralkali electrolysis.
  • FIG. 1 shows an example of a cross-sectional structure of a zero gap electrolytic cell.
  • the zero gap electrolytic cell has a structure in which the anode chamber (1) and the cathode chamber (2) are partitioned by the ion exchange membrane (3), and the ion exchange membrane (3) is sandwiched between the anode (4) and the cathode (5).
  • the ion exchange membrane (3) is made of a thin resin film of 1 mm or less, and the ion exchange membrane (3) is damaged when the anode (4) and / or the cathode (5) is excessively pressed.
  • the technique of pressing the anode (4) and / or the cathode (5) uniformly against the ion exchange membrane with an appropriate pressure is important.
  • an ion exchange membrane electrolytic cell composed of a thin flexible screen and an elastic mat (elastic compressible mat) provided on the outer surface of the thin screen has been proposed (for example, see Patent Document 1). ).
  • This proposed ion exchange membrane method electrolytic cell has a structure in which a flexible electrode is pressed against the ion exchange membrane by the elastic repulsive force of the elastic mat, and the ion exchange membrane is sandwiched between the other rigid electrode. It is a zero gap electrolytic cell having.
  • the electrode support member (6) installed on the back surface of the flexible cathode (5) in FIG. 1 is made of an elastic mat, and the elastic repulsive force of the elastic mat is used.
  • the flexible cathode (5) has a structure that is pressed against the ion exchange membrane (3) toward the rigid anode (4).
  • a current collector (7) is installed outside the electrode support member (6).
  • the fixing means described in Patent Document 4 includes a fixing pin (8) made of a flexible cathode (5) and a metal.
  • the flexible mat (5) and the metal coil body (10) are fixed to the current collector plate (7) through the elastic mat made of the coil body (10) and engaged with the holes of the current collector plate (7). Configured to be.
  • the flexible cathode (5) contacts the ion exchange membrane (3) and is pushed to the anode (4) side.
  • the ion exchange membrane (3) does not move, the distance between the flexible cathode (5) and the current collector (7) is reduced, and the metal coil body (10) is compressed.
  • the flexible cathode (5) is brought into close contact with the ion exchange membrane (3) by the elastic repulsion of the metal coil body (10), so that the distance between the anode (4) and the flexible cathode (5) is possible. Become shorter.
  • the zero gap electrolytic cell of the prior art is difficult to fix the elastic mat and the flexible cathode at the time of assembly, and the ion exchange membrane is easily damaged during the assembly of the electrolytic cell and during operation. have.
  • An object of the present invention is to provide a zero-gap electrolytic cell that is easy to manufacture and does not have a deformed cathode part that causes damage to the ion exchange membrane.
  • the present invention is an ion exchange membrane electrolytic cell having a configuration in which an electrode support member is sandwiched and accommodated between a flexible electrode and a current collector plate, and at least a part of the electrode support member is elastic.
  • an ion exchange membrane method electrolytic cell comprising a corrosion resistant frame (A) covered with a mat and a corrosion resistant frame (B) not covered with an elastic mat at all.
  • the work of fixing the elastic mat and the flexible cathode, which has been difficult in the conventional zero gap electrolytic cell, is extremely simple.
  • there is no deformation of the cathode that causes damage to the ion exchange membrane there is a special effect that enables stable operation over a long period of time.
  • electrode replacement when electrode performance deteriorates can be performed very easily.
  • FIG. 6 is a sectional view taken along line aa in FIG. 5.
  • FIG. 10 is a sectional view taken along line aa in FIG. 9. It is an expanded sectional view of the b section of Drawing 7 at the time of electrolytic cell use.
  • SYMBOLS 1 Anode chamber 2 Cathode chamber 3 Ion exchange membrane 4 Rigid anode or anode 5 Flexible cathode or cathode 6 Electrode support member 7 Current collecting plate 8 Pin 9 Corrosion resistant frame (A) DESCRIPTION OF SYMBOLS 10 Metal coil body 11 Cathode deformation part 12 Frame connection material 13 Corrosion resistance frame (B) 14 Pin head 15 Pin tip 16 Pin rod 17 Pin head cut 18 Current collector hole
  • salt electrolysis as an application example of the ion exchange membrane method electrolytic cell of this invention is demonstrated, it can utilize suitably also for potassium chloride aqueous solution electrolysis, alkaline water electrolysis, etc. other than salt electrolysis.
  • the ion exchange membrane electrolytic cell of the present invention is a so-called zero gap electrolytic cell in which the distance between the anode and the cathode is made as short as possible, and its cross-sectional structure is shown in FIG.
  • the anode chamber (1) and the cathode chamber (2) are partitioned by an ion exchange membrane (3), and the electrode support member (6) is sandwiched between the flexible cathode (5) and the current collector plate (7).
  • the rigid anode (4) is not particularly limited, and a conventionally known one may be used in a timely manner.
  • a chlorine generating electrode in which an expanded metal made of titanium carries a chlorine generating electrode catalyst such as iridium oxide and / or ruthenium oxide is widely known.
  • the ion exchange membrane (3) is not particularly limited, and a conventionally known one may be used in a timely manner.
  • an ion exchange membrane made of a fluororesin film having a cation exchange group such as a sulfonic acid group or a carboxylic acid group is widely known.
  • the flexible cathode (5) may be soft.
  • a hydrogen generating electrode that generates hydrogen during electrolysis and an oxygen gas diffusion electrode that reduces oxygen gas are widely known, and any of them is preferably used.
  • a hydrogen generating cathode that generates hydrogen during electrolysis is preferable.
  • a so-called active cathode in which a hydrogen generating electrode catalyst is supported on a nickel base is usually applied.
  • active cathodes have been developed and put to practical use, and any of these active cathodes can be used in the present invention.
  • the nickel base used for the active cathode there is no particular limitation on the nickel base used for the active cathode, but a porous plate such as nickel expanded metal is common.
  • the thickness of the nickel substrate is preferably 1 mm or less, more preferably 0.3 mm or less. If the nickel base is too thick, the flexibility is insufficient, a uniform zero gap cannot be secured, and the energy saving effect of the present invention may not be obtained. In some cases, the ion exchange membrane is excessively pressed and damaged. Arise.
  • the lower limit of the thickness of the nickel base material is not particularly limited as long as the nickel base material can be handled, but is usually 0.01 mm or more.
  • the hydrogen generation catalyst supported on the nickel base of the active cathode is not particularly limited, but a noble metal catalyst such as platinum, a platinum alloy, or ruthenium oxide is preferable.
  • a noble metal catalyst such as platinum, a platinum alloy, or ruthenium oxide is preferable.
  • a conductive metal plate having excellent corrosion resistance is used.
  • a nickel or stainless steel plate is preferably used.
  • a metal plate with excellent conductivity, such as copper, having a surface coated with nickel and having improved corrosion resistance is also preferably used.
  • the thickness of the current collector plate (7) is not particularly limited, but is preferably 1 to 3 mm. If it is less than 1 mm, the rigidity is insufficient and the effects of the present invention may not be obtained. On the other hand, if it is too thick, the material cost is deteriorated.
  • the current collector plate (7) has a hole that engages with the pin (8).
  • a hole may be provided only at a position where the pin (8) is installed, or the current collector plate (7) may be a perforated plate, and the pin (8) may be engaged with a part of the holes.
  • the pin (8) extends from the flexible cathode (5) through the electrode support member (6) (consisting of the metal coil body (10) and the corrosion-resistant frame (9) A) and the current collector plate (7).
  • the flexible cathode (5) and the electrode support member (6) are fixed to the current collector plate (7) by pins (8).
  • the current collector plate (7) is composed of a perforated plate and engages with the pin (8), and the ion exchange membrane (3) and the flexible cathode (5) and the back surface of the current collector plate (7). Ensure that the electrolyte and gas can flow smoothly between the parts.
  • an electrode support member (6) is installed between the flexible cathode (5) and the current collector plate (7).
  • the electrode support member (6) has at least a part of its surface covered with an elastic mat.
  • FIG. 5 and FIG. 6 show a cross-sectional view taken along the line aa in FIG.
  • a metal coil body (10) is preferably wound around a part of the corrosion resistant frame (A) (9) to form an elastic mat. At least a part of the surface of the electrode support member (6) is covered with an elastic mat.
  • the electrode support member (6) attached to the ion exchange membrane electrolytic cell of the present invention illustrated in FIG. 5 is composed of four corrosion resistant frames (A) (9) and four surrounding the corrosion resistant frame (A). It consists of a corrosion-resistant frame (B) (13) and two frame connecting members (12) that connect the corrosion-resistant frame (A) and the corrosion-resistant frame (B).
  • the outer periphery of the electrode support member (6) is composed of a corrosion-resistant frame (B) (13), and the two corrosion-resistant frames (B) (13) in the lateral direction are bridged by two frame connecting materials (12).
  • the frame connecting portions (12) are bridged by two or more corrosion resistant frames (A) (9). At least a part of the surface of the frame connecting portion (12) and the surface of the corrosion-resistant frame (A) (9) is covered with an elastic mat, preferably made of a metal coil body (10).
  • the corrosion resistant frame (A) (9) is made of a material that is corrosion resistant to the electrolyte, and is usually made of nickel or stainless steel round bars or square bars. For example, it is manufactured by combining nickel round bars having a diameter of 1 to 3 mm. Moreover, the thing which coat
  • the metal coil body (10) is a metal having a coil shape, and for example, a spiral metal coil body (10) obtained by rolling a metal wire is applied.
  • a material having high corrosion resistance such as nickel or stainless steel is preferably used, and a metal wire excellent in conductivity such as copper having a surface coated with nickel is preferably used.
  • a spiral metal coil body (10) obtained by rolling a copper wire may be coated with nickel to improve corrosion resistance.
  • the coil winding diameter (apparent diameter of the coil) of the metal coil body (10) is not particularly limited, but is usually 3 to 10 mm. If the coil winding diameter is smaller than 3 mm, the compressible thickness of the elastic mat is insufficient, and the effects of the present invention may not be exhibited. On the other hand, if it is larger than 10 mm, the handleability may be deteriorated, and the elastic repulsion may be insufficient due to plastic deformation during compression.
  • the coil thickness of the metal coil body (10) is not particularly limited, but is usually 0.005 to 1 mm, preferably 0.01 to 0.1 mm. If the coil is thicker than 1 mm, the elastic repulsion force during compression becomes abnormally strong, and the effects of the present invention may not be obtained. Conversely, if it is thinner than 0.005 mm, the coil may be damaged during handling.
  • the metal coil body (10) is wound around the corrosion resistant frame (A) (9) to form an elastic mat.
  • an elastic mat is formed by winding the metal coil body (10) around a corrosion-resistant frame (A) (9) combined in a rectangular shape. Can do.
  • the metal coil body (10) may be wound around the corrosion-resistant frame (A) in which only two are arranged in parallel.
  • the metal coil body (10) is wound around the corrosion resistant frame (A) (9), taking FIG. 5 as an example, the four of the four frames constituting the rectangular corrosion resistant frame (A) (9)
  • the at least one metal coil body (10) may be wound so as to obtain a substantially uniform density between the two facing each other.
  • the amount of the metal coil body (10) wound around the corrosion-resistant frame (A) (9) is appropriately adjusted so that the elastic repulsion force of the elastic mat becomes a desired value.
  • the amount of winding differs depending on the winding diameter, thickness and material of the coil.
  • the elastic repulsion force may be 10 to 150 g per square centimeter when the elastic mat is compressed to 60 to 80% of the thickness at the time of non-compression.
  • FIG. 5 shows an example in which the corrosion-resistant frame (B) (13) surrounds the entire periphery of the rectangular corrosion-resistant frame (A) (9), but the corrosion-resistant frame (B) (13) is the corrosion-resistant frame (A) ( Even if it encloses a part of 9), the effects of the present invention can be obtained.
  • the corrosion-resistant frame (B) (13) and the frame connecting material (12) are made of a material that is corrosion-resistant to the electrolytic solution, and are usually manufactured with nickel or stainless steel round bars or square bars.
  • a nickel round bar having a diameter of 1 to 3 mm can be preferably applied, and a metal with excellent conductivity, such as copper, coated with nickel is preferably used.
  • the corrosion-resistant frame (A) (9), the corrosion-resistant frame (B) (13), and the frame connecting material (12) do not have to be made of the same material, but usually they are round bars and square bars made of the same material. Consists of.
  • the method for connecting the frame connecting material (12) to the corrosion resistant frame (A) (9) and / or the corrosion resistant frame (B) (13) is not particularly limited, and may be connected by welding or screwing.
  • the elastic mat does not exist in at least a part of the space formed by the corrosion resistant frame (A) (9) and the corrosion resistant frame (B) (13), and a space without the elastic mat is formed. Therefore, the electrode support member (6) shown in FIG. 5 is one of the preferred embodiments of the present invention having both a space having an elastic mat and a space not having an elastic mat.
  • FIG. 12 Another preferred embodiment of the electrode support member (6) of the present invention is illustrated in FIG.
  • a metal coil body (10) is wound around each of two corrosion-resistant frames (A) and (9), and these are connected to each other by a frame connecting material (12).
  • Corrosion-resistant frames (B) and (13) surrounding (9) are connected to the corrosion-resistant frames (A) and (9) by a frame connecting agent (12).
  • the metal coil body (10) is not wound around the corrosion resistant frame (B) (13).
  • a plurality of corrosion-resistant frames (A) and (9) are connected by the connecting member (12), and the corrosion-resistant frames (B) and (13) are connected to a part of the periphery by the connecting member (12). It is possible to constitute the electrode support member (6) having both the space having the elastic mat of the present invention and the space not having the elastic mat.
  • the electrode support member (6) is sandwiched between the flexible cathode (5) and the current collector plate (7).
  • the mode in which the electrode support member (6) is sandwiched between the flexible cathode (5) and the current collector plate (7) there is no particular limitation on the mode in which the electrode support member (6) is sandwiched between the flexible cathode (5) and the current collector plate (7).
  • the ion exchange membrane (3) may be damaged or the voltage may be increased.
  • the flexible cathode (5) and the electrode support member (6) are preferably fixed to the ion exchange membrane electrolytic cell.
  • the current collector plate (7) is fixed to the electrolytic cell by welding or the like.
  • the flexible cathode (5) and the electrode support member (6) are fixed to the current collector plate (7) by fixing the flexible cathode (5) and the electrode support member (6) to the ion exchange membrane method electrolytic cell. Fix it.
  • the flexible cathode (5) and the electrode support member (6) are connected to the current collector plate by a pin (8) passing through the flexible cathode (5), the electrode support member (6) and the current collector plate (7). It is fixed to (7).
  • the pin (8) is configured so as to penetrate the flexible cathode (5) but not penetrate the space having the elastic mat of the electrode support member (6).
  • FIG. 7 and FIG. 8 showing a cross section of FIG. 7 show a flexible cathode (5), an electrode support member (6) [corrosion resistant frame (A) (9), corrosion resistant frame (B) (13) and metal.
  • a preferred embodiment of fixing a coil body (10)] to a current collector plate (7) is illustrated.
  • the pin (8) is only the space portion without the elastic mat of the electrode support member (6), and penetrates the flexible cathode (5), the electrode support member (6), and the current collector plate (7).
  • the flexible cathode (5) and the electrode support member (6) are fixed to the current collector plate (7).
  • Any pin may be used as long as it has corrosion resistance and can be fixed through the flexible cathode (5), the electrode support member (6), and the current collector plate (7).
  • the material is preferably a corrosion-resistant material such as nickel, stainless steel or fluororesin. However, it is more preferable to use a fluororesin pin (8) because the possibility of damaging the flexible cathode (5) and the ion exchange membrane (3) is low.
  • FIG. 13 shows an example of a suitable pin (8) used in the present invention.
  • the pin (8) has a shape in which a head (14) made of a circular or polygonal thin plate and a tip (15) are connected by a rod-like member (16).
  • the tip portion (15) has a shape that engages with the hole (18) of the current collector plate (7).
  • the tip portion (15) is inserted from the flexible cathode (5) side, and the flexible cathode (5) ),
  • the electrode support member (6), and the current collector plate (7) are passed through to fix the flexible cathode (5) and the electrode support member (6) to the current collector plate (7).
  • the “shape that engages with the hole” refers to a shape that can be inserted into the hole and that cannot be pulled out naturally after insertion, but can be pulled out artificially.
  • FIG. 14 shows a cross-sectional view of the pin (8) of FIG.
  • the tip (15) of the pin has a notch (17), and the notch (17) is open in the natural state, and the size of the pin tip (15) is the size of the current collector (not shown) (7).
  • the inner diameter of the hole of the current collector plate (not shown) (7) becomes smaller when the notch (17) is reduced.
  • the slit (17) can be easily inserted into the concavity when inserted into the hole, but the slit (17) returns to its original state after insertion and does not come out of the hole naturally.
  • the cut (17) is narrowed and can be pulled out from the hole.
  • FIG. 15 illustrates another preferred pin (8) configuration
  • the pin tip (15) has a prismatic shape
  • the current collector plate (7) is composed of, for example, a perforated plate having a large number of rhombus-shaped holes typified by expanded metal.
  • the tip ( 15) of the pin (8) that engages with the hole (18) of the current collector plate (7) has been described above, the tip ( 15) can be inserted into the hole (18) of the current collector plate (7) and does not fall off naturally after insertion, but can be pulled out artificially, the effect of the present invention. It goes without saying that is obtained.
  • the electrode support member (6) used in the present invention has a novel shape having both a space having an elastic mat and a space portion not having an elastic mat, and has an elastic mat of the electrode support member (6).
  • the electrode support member (6) can be fixed to the ion exchange membrane electrolytic cell.
  • the flexible cathode (5) and the electrode support member (6) are connected to the current collector plate by a pin (8) passing through the flexible cathode (5), the electrode support member (6) and the current collector plate (7). It is fixed to (7).
  • the pin (8) penetrates the flexible cathode (5) but does not penetrate the space portion having the elastic mat of the electrode support member (6).
  • the repulsive force received by the pin (8) is insignificant in any of the mounting operation of the pin (8), the electrolytic cell assembly operation, and the electrolysis.
  • the pin (8) is deformed during the operation of engaging the pin (8) with the hole of the current collector plate (7), or the flexible cathode (5) is excessively deformed or damaged. There is nothing.
  • the flexible cathode (5) is pushed by the ion exchange membrane (3) and moves toward the current collector plate (7). At this time, the flexible cathode (5) of the elastic mat portion is used. ) And the flexible cathode (5) around the pin (8) have the same moving distance, and the cathode deformed portion (11) as shown in FIG. 4 does not occur. Therefore, the ion exchange membrane is not damaged when the electrolytic cell is assembled or during operation. It goes without saying that an oxygen gas diffusion electrode can be used as the cathode instead of the hydrogen generating cathode.
  • the conventional electrode support member (6) illustrated in FIGS. 9 and 10 does not have the “corrosion resistant frame (B) not covered with an elastic mat” as used in the present invention. Therefore, when the pin (8) is attached at a position where the flexible cathode (5) penetrates but the space portion having the elastic mat of the electrode support member does not penetrate, the flexible cathode (7) is attached to the current collector plate (7). 5) can be fixed, but the electrode support member (6) cannot be fixed, and the effect of the present invention cannot be obtained. In order to attach the electrode support member (6) without the corrosion-resistant frame (B) which is not covered with the elastic mat at all, it is essential to penetrate the elastic mat with the pin (8). As described above, the ion exchange membrane is easily damaged during the assembly of the electrolytic cell and during the electrolysis operation.
  • the ion exchange membrane method salt electrolytic cell of the present invention overcomes the problems of the conventional zero gap electrolytic cell and exhibits the energy saving performance possessed by the zero gap electrolytic cell. That is, the energy required for electrolysis in the electrolytic industry can be kept low, and stable operation can be performed for a long time.
  • the ion exchange membrane electrolytic cell of the present invention is advantageously employed in the electrolytic industry represented by chloralkali electrolysis such as salt electrolysis. It can also be applied to aqueous potassium chloride electrolysis and alkaline water electrolysis.

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  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Electrolytic Production Of Non-Metals, Compounds, Apparatuses Therefor (AREA)

Abstract

L'invention concerne une cellule électrolytique utilisant un procédé à membrane échangeuse d'ions, dans laquelle un élément de support d'électrode: est formé à partir d'un cadre (A) résistant à la corrosion, dont au moins une partie est couverte par un tapis élastique, et d'un cadre (B) résistant à la corrosion ne comportant aucune partie couverte par le tapis élastique; et maintenu et contenu entre une électrode souple et un collecteur de courant. De préférence, l'électrode souple et l'élément de support d'électrode sont fixés au collecteur de courant par une tige, qui traverse l'électrode négative souple mais ne traverse pas l'espace dans lequel se situe le tapis élastique de l'élément de support d'électrode. Cette cellule électrolytique utilisant un procédé à membrane échangeuse d'ions peut être produite facilement et exploitée de manière stable sur une longue durée, sans détérioration de la membrane échangeuse d'ions.
PCT/JP2011/080305 2010-12-28 2011-12-27 Cellule électrolytique utilisant un procédé à membrane échangeuse d'ions WO2012091055A1 (fr)

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JP2010-292305 2010-12-28
JP2010292305A JP5653209B2 (ja) 2010-12-28 2010-12-28 イオン交換膜法電解槽

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CN112313366B (zh) * 2018-07-06 2023-08-15 旭化成株式会社 电极结构体、电极结构体的制造方法、电解单元和电解槽

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2000178781A (ja) * 1998-12-10 2000-06-27 Tokuyama Corp 電解槽及びそれに用いる固定ピン
JP2004300543A (ja) * 2003-03-31 2004-10-28 Chlorine Eng Corp Ltd 電解用電極及びそれを使用するイオン交換膜電解槽
JP2008063611A (ja) * 2006-09-06 2008-03-21 Chlorine Eng Corp Ltd イオン交換膜電解槽
JP2010174346A (ja) * 2009-01-30 2010-08-12 Tosoh Corp イオン交換膜法電解槽及びその製造方法

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2000178781A (ja) * 1998-12-10 2000-06-27 Tokuyama Corp 電解槽及びそれに用いる固定ピン
JP2004300543A (ja) * 2003-03-31 2004-10-28 Chlorine Eng Corp Ltd 電解用電極及びそれを使用するイオン交換膜電解槽
JP2008063611A (ja) * 2006-09-06 2008-03-21 Chlorine Eng Corp Ltd イオン交換膜電解槽
JP2010174346A (ja) * 2009-01-30 2010-08-12 Tosoh Corp イオン交換膜法電解槽及びその製造方法

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